[DemocracyFTW2]

I think the article should not have left out the observation that in case you want to get to local time from UTC, you can only do so with certainty for the past, the present and the near future, because there could always be a change in daylight savings time (DST) regulations for a given locale. In my eyes that makes UTC a tiny little less useful for some purposes. OTOH human schedules should not be affected. Even for a country like [Egypt] which apparently has no issues with changing DST regulations with a mere few days of notice, meeting at 1:00pm in Cairo on some given day in the future will always mean whatever the local time stipulates it to be, come the day.

OTOH I believe that for computers, adopting something like TAI for all timestamps would probably a good thing. Re-adjusting display dates for the past where needed is much less complex wrt leap seconds than it is for time zones and DST. The conceptual simplicity of TAI and the invariants afforded by it come with the slight disadvantage that "the future can not be predicted", but we already cannot predict the future of countries changing time zones and DST dates, so we'd not be any worse off in that regard.

[Egypt](https://en.wikipedia.org/wiki/Daylight_saving_time_in_Egypt)